R Skjaerven

Summary

Affiliation: University of Bergen
Country: Norway

Publications

  1. doi request reprint Effects of technology or maternal factors on perinatal outcome after assisted fertilisation: a population-based cohort study
    Liv Bente Romundstad
    IVF Unit, Department of Obstetrics and Gynaecology, St Olavs University Hospital, Trondheim, Norway
    Lancet 372:737-43. 2008
  2. pmc Cardiovascular mortality after pre-eclampsia in one child mothers: prospective, population based cohort study
    Rolv Skjaerven
    Department of Public Health and Primary Health Care, University of Bergen, Bergen, Norway
    BMJ 345:e7677. 2012
  3. ncbi request reprint A population-based study of survival and childbearing among female subjects with birth defects and the risk of recurrence in their children
    R Skjaerven
    Section for Medical Statistics and the Medical Birth Registry of Norway, University of Bergen
    N Engl J Med 340:1057-62. 1999
  4. ncbi request reprint The interval between pregnancies and the risk of preeclampsia
    Rolv Skjaerven
    Section for Medical Statistics, Department of Public Health and Primary Health Care, and the Medical Birth Registry of Norway, Locus for Registry Based Epidemiology, University of Bergen, Bergen, Norway
    N Engl J Med 346:33-8. 2002
  5. pmc Recurrence of pre-eclampsia across generations: exploring fetal and maternal genetic components in a population based cohort
    Rolv Skjaerven
    Section for Epidemiology and Medical Statistics, Department of Public Health and Primary Health Care, University of Bergen, Norway
    BMJ 331:877. 2005
  6. ncbi request reprint Survival and reproduction among males with birth defects and risk of recurrence in their children
    R T Lie
    Section for Medical Statistics, University of Bergen, Armauer Hansens Bldg, 5021 Bergen, Norway
    JAMA 285:755-60. 2001
  7. doi request reprint Maternal birth characteristics and perinatal mortality in twin offspring. An intergenerational population-based study in Norway, 1967-2008
    A Tandberg
    Department of Public Health and Primary Health Care, University of Bergen, Bergen, Norway
    BJOG 118:698-705. 2011
  8. doi request reprint Recurrence of prolonged and post-term gestational age across generations: maternal and paternal contribution
    N H Morken
    Department of Obstetrics and Gynaecology, Haukeland University Hospital, Bergen, Norway
    BJOG 118:1630-5. 2011
  9. pmc Maternal and paternal contribution to intergenerational recurrence of breech delivery: population based cohort study
    Tone Irene Nordtveit
    Section for Epidemiology and Medical Statistics, Department of Public Health and Primary Health Care, University of Bergen, Postbox 7804, N 5020 Bergen, Norway
    BMJ 336:872-6. 2008
  10. ncbi request reprint Associations of birth size, gestational age, and adult size with intellectual performance: evidence from a cohort of Norwegian men
    Martha G Eide
    Department of Public Health and Primary Health Care, University of Bergen, N 5018 Bergen, Norway
    Pediatr Res 62:636-42. 2007

Collaborators

Detail Information

Publications53

  1. doi request reprint Effects of technology or maternal factors on perinatal outcome after assisted fertilisation: a population-based cohort study
    Liv Bente Romundstad
    IVF Unit, Department of Obstetrics and Gynaecology, St Olavs University Hospital, Trondheim, Norway
    Lancet 372:737-43. 2008
    ..We therefore compared pregnancy outcomes in women who had singleton pregnancies conceived both spontaneously and after assisted fertilisation...
  2. pmc Cardiovascular mortality after pre-eclampsia in one child mothers: prospective, population based cohort study
    Rolv Skjaerven
    Department of Public Health and Primary Health Care, University of Bergen, Bergen, Norway
    BMJ 345:e7677. 2012
    ..To assess the association of pre-eclampsia with later cardiovascular death in mothers according to their lifetime number of pregnancies, and particularly after only one child...
  3. ncbi request reprint A population-based study of survival and childbearing among female subjects with birth defects and the risk of recurrence in their children
    R Skjaerven
    Section for Medical Statistics and the Medical Birth Registry of Norway, University of Bergen
    N Engl J Med 340:1057-62. 1999
    ..The rate of survival was determined through 1992, and the rate of childbearing was determined through October 1997. We also estimated the risk of birth defects in the children of these subjects...
  4. ncbi request reprint The interval between pregnancies and the risk of preeclampsia
    Rolv Skjaerven
    Section for Medical Statistics, Department of Public Health and Primary Health Care, and the Medical Birth Registry of Norway, Locus for Registry Based Epidemiology, University of Bergen, Bergen, Norway
    N Engl J Med 346:33-8. 2002
    ..However, the difference in risk might instead be explained by the interval between births. A longer interbirth interval may be associated with both a change of partner and a higher risk of preeclampsia...
  5. pmc Recurrence of pre-eclampsia across generations: exploring fetal and maternal genetic components in a population based cohort
    Rolv Skjaerven
    Section for Epidemiology and Medical Statistics, Department of Public Health and Primary Health Care, University of Bergen, Norway
    BMJ 331:877. 2005
    ..To assess the impact on risk of pre-eclampsia of genes that work through the mother, and genes of paternal origin that work through the fetus...
  6. ncbi request reprint Survival and reproduction among males with birth defects and risk of recurrence in their children
    R T Lie
    Section for Medical Statistics, University of Bergen, Armauer Hansens Bldg, 5021 Bergen, Norway
    JAMA 285:755-60. 2001
    ..Few systematic data exist on survival and reproduction among males with birth defects and their contribution to occurrence of birth defects in the next generation...
  7. doi request reprint Maternal birth characteristics and perinatal mortality in twin offspring. An intergenerational population-based study in Norway, 1967-2008
    A Tandberg
    Department of Public Health and Primary Health Care, University of Bergen, Bergen, Norway
    BJOG 118:698-705. 2011
    ..To investigate the relationship between maternal preterm birth and fetal growth in one generation and perinatal mortality of twin offspring in the next generation...
  8. doi request reprint Recurrence of prolonged and post-term gestational age across generations: maternal and paternal contribution
    N H Morken
    Department of Obstetrics and Gynaecology, Haukeland University Hospital, Bergen, Norway
    BJOG 118:1630-5. 2011
    ..To estimate intergenerational recurrence risk of prolonged and post-term gestational age...
  9. pmc Maternal and paternal contribution to intergenerational recurrence of breech delivery: population based cohort study
    Tone Irene Nordtveit
    Section for Epidemiology and Medical Statistics, Department of Public Health and Primary Health Care, University of Bergen, Postbox 7804, N 5020 Bergen, Norway
    BMJ 336:872-6. 2008
    ..To investigate intergenerational recurrence of breech delivery, with a hypothesis that both women and men delivered in breech presentation contribute to increased risk of breech delivery in their offspring...
  10. ncbi request reprint Associations of birth size, gestational age, and adult size with intellectual performance: evidence from a cohort of Norwegian men
    Martha G Eide
    Department of Public Health and Primary Health Care, University of Bergen, N 5018 Bergen, Norway
    Pediatr Res 62:636-42. 2007
    ..In conclusion, the association of birth size with intellectual performance was weak, but still present after adjustment for adult body size and social factors...
  11. doi request reprint Trends in incidence and mortality for triplets in Norway 1967-2006: the influence of assisted reproductive technologies
    A Tandberg
    Department of Obstetrics and Gynaecology, Haukeland University Hospital, Bergen, Norway
    BJOG 117:667-75. 2010
    ..To assess changes in incidence rates and outcomes of triplets over 40 years with a particular focus on the influence of assisted reproductive technology (ART)...
  12. doi request reprint Mothers' and fathers' birth characteristics and perinatal mortality in their offspring: a population-based cohort study
    Tone I Nordtveit
    Department of Public Health and Primary Health Care, University of Bergen, Bergen, Norway
    Paediatr Perinat Epidemiol 24:282-92. 2010
    ..In conclusion, a mother's gestational age, and not her birthweight, was significantly associated with perinatal mortality in the offspring, while there was no such association for the father...
  13. ncbi request reprint Size at birth and gestational age as predictors of adult height and weight
    Martha G Eide
    Section for Epidemiology and Medical Sciences, Department of Public Health and Primary Health Care, University of Bergen, Bergen, Norway
    Epidemiology 16:175-81. 2005
    ..Our objective was to examine the independent contributions of gestational age, and of length and weight at birth, on adult (age 18 years) height and weight, with a special focus on the effects of being born preterm...
  14. ncbi request reprint Genetic and environmental influences on birth weight, birth length, head circumference, and gestational age by use of population-based parent-offspring data
    Astrid Lunde
    Section for Epidemiology and Medical Statistics, Department of Public Health and Primary Health Care, University of Bergen, Bergen, Norway
    Am J Epidemiol 165:734-41. 2007
    ..Relative to the proportion of explained variation, fetal genes were most important for birth length and head circumference...
  15. ncbi request reprint Maternal and paternal influences on length of pregnancy
    Rolv T Lie
    Medical Birth Registry of Norway, Locus for Registry Based Epidemiology, University of Bergen, Norwegian Institute of Public Health
    Obstet Gynecol 107:880-5. 2006
    ..Similar tendencies between mother and child could represent maternal genes passed to the fetus, as well as genes to the mother received from the grandmother that affect a woman's capacity to carry a pregnancy...
  16. ncbi request reprint Families with birth defects: is birth weight of nonmalformed siblings affected?
    Kari Klungsøyr Melve
    Section for Medical Statistics, Department of Public Health and Primary Health Care, University of Bergen, Norway
    Am J Epidemiol 155:932-40. 2002
    ..We conclude that reduced birth weight associated with congenital anomalies is specific to the affected pregnancy...
  17. ncbi request reprint Changes in parental risk behaviour after an information campaign against sudden infant death syndrome (SIDS) in Norway
    S A R Hill
    University of Bergen, Norway
    Acta Paediatr 93:250-4. 2004
    ..To assess parental risk behaviour before and after a sudden infant death syndrome (SIDS) information campaign with special emphasis on associations with maternal age, education, marital status and birth order...
  18. pmc Errors in gestational age: evidence of bleeding early in pregnancy
    H K Gjessing
    Division for Medical Statistics, University of Bergen, Norway
    Am J Public Health 89:213-8. 1999
    ..This study explored the extent of errors in gestational age as ascertained by last menstrual period...
  19. doi request reprint Intergenerational birth weight associations by mother's birth order - the mechanisms behind the paradox: a population-based cohort study
    Tone Irene Nordtveit
    Section for Epidemiology and Medical Statistics, Department of Public Health and Primary Health Care, University of Bergen, Bergen, Norway
    Early Hum Dev 85:577-81. 2009
    ..Mother's birth order is inversely associated with offspring birth weight despite positively associated with the mother's own birth weight. The causes behind this relation have not been elucidated...
  20. ncbi request reprint Birthweight and perinatal mortality: paradoxes, social class, and sibling dependencies
    Kari Klungsøyr Melve
    Section for Medical Statistics, Department of Public Health and Primary Health Care, University of Bergen, Norway
    Int J Epidemiol 32:625-32. 2003
    ..We wanted to study whether these relations were explained by socioeconomic levels, and to study time trends in a situation with decreasing perinatal mortality rates...
  21. ncbi request reprint Is smoking an extra hazard in pregnant MS women? Findings from a population-based registry in Norway
    J Dahl
    Section of Neurology, Department of Clinical Medicine, University of Bergen, Bergen, Norway
    Eur J Neurol 14:1113-7. 2007
    ..Smoking during pregnancy did not explain the birth weight reduction found for newborns of MS mothers...
  22. ncbi request reprint Early death, morbidity, and need of treatment among extremely premature infants
    Trond Markestad
    Department of Pediatrics, Haukeland University Hospital, Bergen, Norway
    Pediatrics 115:1289-98. 2005
    ..To determine outcomes, in terms of perinatal and early death, need for treatment, and morbidity at the time of discharge home, among extremely preterm infants...
  23. ncbi request reprint Associations of birth defects with adult intellectual performance, disability and mortality: population-based cohort study
    Martha G Eide
    Department of Public Health Care, University of Bergen, N 5018 Bergen, Norway
    Pediatr Res 59:848-53. 2006
    ..Thus, there seems to be little reason to fear an adverse intellectual outcome in non-disabled surviving infants with birth defects...
  24. ncbi request reprint Families with a perinatal death: is there an association between the loss and the birthweight of surviving siblings?
    Kari Klungsøyr Melve
    Sections for Medical Statistics, Department of Public Health and Primary Health Care, University of Bergen, Bergen, Norway
    Paediatr Perinat Epidemiol 16:23-32. 2002
    ..We conclude that families who have lost an infant because of a birth defect do not appear to have an increased risk of adverse birth outcome associated with growth restriction...
  25. doi request reprint Recurrence of stillbirth in sibships: Population-based cohort study
    Kari Klungsøyr Melve
    Department of Public Health and Primary Health Care, University of Bergen, Norway
    Am J Epidemiol 172:1123-30. 2010
    ..Over time, recurrence of early stillbirth decreased, whereas that of mid/late stillbirth did not change significantly. A symmetric pattern of recurring stillbirth in similar weight-by-gestation groups was not found...
  26. doi request reprint Prior adverse pregnancy outcome and the risk of stillbirth
    Svein Rasmussen
    Medical Birth Registry of Norway, The Norwegian Institute of Public Health, Bergen, Norway
    Obstet Gynecol 114:1259-70. 2009
    ..We also estimated the maternal and paternal contributions to such effects...
  27. ncbi request reprint Breech delivery and intelligence: a population-based study of 8,738 breech infants
    Martha G Eide
    Section for Epidemiology and Medical Statistics, Department of Public Health and Primary Health Care, University of Bergen, Norway
    Obstet Gynecol 105:4-11. 2005
    ..We evaluated the effect of presentation at birth and delivery mode on intellectual performance at age 18 years in a nationwide population study...
  28. doi request reprint Outcomes of pregnancies following a birth with major birth defects: a population based study
    Kari Klungsøyr Melve
    Department of Public Health and Primary Health Care, University of Bergen, Norway
    Early Hum Dev 84:651-7. 2008
    ..Parents whose first infant had birth defects may worry about a new pregnancy. Our aim was to study pregnancy outcomes among non-malformed second siblings in families where the first birth had a major birth defect...
  29. ncbi request reprint Maternal epilepsy and offsprings' adult intelligence: a population-based study from Norway
    Nina Oyen
    Department of Public Health and Primary Health Care, University of Bergen, Bergen, Norway
    Epilepsia 48:1731-8. 2007
    ..We examined if children of mothers with epilepsy had normal intelligence, speculating that either epilepsy or its therapy might affect this parameter...
  30. ncbi request reprint Paternal age and the risk of birth defects in Norway
    Method Kazaura
    Centre for International Health, University of Bergen, N 5021 Bergen, Norway
    Ann Epidemiol 14:566-70. 2004
    ..We studied 1,869,388 births from The Medical Birth Registry of Norway to assess the effect of father's age on risks of birth defects in offspring...
  31. ncbi request reprint Increasing twinning rates in Norway, 1967-2004: the influence of maternal age and assisted reproductive technology (ART)
    Anne Tandberg
    Department of Obstetrics and Gynaecology, Haukeland University Hospital, Bergen, Norway
    Acta Obstet Gynecol Scand 86:833-9. 2007
    ..In the present nationwide study from Norway, we aimed at evaluating the effect of assisted reproductive technologies and delayed childbearing age on this epidemic rise...
  32. doi request reprint Registration of Down syndrome in the Medical Birth Registry of Norway: validity and time trends
    Kari Klungsøyr Melve
    Department of Public Health and Primary Health Care, University of Bergen, Bergen, Norway
    Acta Obstet Gynecol Scand 87:824-30. 2008
    ..To validate Down syndrome registration in the Medical Birth Registry of Norway (MBRN), 2001-2005, and study time trends and geographical differences in Down syndrome prevalence,1967-2005...
  33. doi request reprint Self-selection and bias in a large prospective pregnancy cohort in Norway
    Roy M Nilsen
    Department of Public Health and Primary Health Care, University of Bergen, Kalfarveien 31, N 5018 Bergen, Norway
    Paediatr Perinat Epidemiol 23:597-608. 2009
    ....
  34. ncbi request reprint Reduced fertility after cesarean delivery: a maternal choice
    Mette C Tollånes
    Department of Public Health and Primary Health Care, University of Bergen, Norway
    Obstet Gynecol 110:1256-63. 2007
    ..To explore the association between mode of delivery and subsequent fertility...
  35. doi request reprint Smoking during pregnancy from 1999 to 2004: a study from the Medical Birth Registry of Norway
    Liv Grimstvedt Kvalvik
    Section for Social Medicine, University of Bergen, Norway
    Acta Obstet Gynecol Scand 87:280-5. 2008
    ..We wanted to investigate whether there was a general decline in smoking habits among pregnant women. We also wanted to identify population subgroups with diverging trends...
  36. ncbi request reprint Familial patterns of preterm delivery: maternal and fetal contributions
    Allen J Wilcox
    Epidemiology Branch, National Institute of Environmental Health Sciences, Durham, NC 27709, USA
    Am J Epidemiol 167:474-9. 2008
    ..The increased risk of preterm delivery among mothers born preterm is consistent with heritable maternal phenotypes that confer a propensity to deliver preterm...
  37. ncbi request reprint Increased risk of placenta previa in pregnancies following IVF/ICSI; a comparison of ART and non-ART pregnancies in the same mother
    Liv Bente Romundstad
    Department of Obstetrics and Gynaecology, St Olavs University Hospital, Torndheim, Norway
    Hum Reprod 21:2353-8. 2006
    ..Whether the increased risk is due to factors related to the reproductive technology, or associated with maternal factors, is not known...
  38. ncbi request reprint [The Mother and Child Cohort Study will give new answers]
    Per Magnus
    Divisjon for epidemiologi, Nasjonalt folkehelseinstitutt, Postboks 4404 Nydalen, 0403 Oslo
    Tidsskr Nor Laegeforen 126:1747-9. 2006
    ..The overall goal is to come up with good preventive measures. The purpose of this article is to inform about MoBa and to stimulate enhanced use of data collected during research...
  39. ncbi request reprint [Change of partner between births and adverse pregnancy outcomes]
    Lars J Vatten
    Institutt for samfunnsmedisinske fag, Norges Teknisk Naturvitenskapelige Universitet, 7489 Trondheim
    Tidsskr Nor Laegeforen 123:3546-8. 2003
    ..Women who change partner may have individual characteristics that increase risk of adverse outcomes, but change of partner could also be associated with unfavourable changes in behaviour...
  40. ncbi request reprint Cohort profile: the Norwegian Mother and Child Cohort Study (MoBa)
    Per Magnus
    Division of Epidemiology, The Norwegian Institute of Public Health, Oslo, Norway
    Int J Epidemiol 35:1146-50. 2006
  41. ncbi request reprint Trends in fetal and infant survival following preeclampsia
    Olga Basso
    Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, NC 27709, USA
    JAMA 296:1357-62. 2006
    ..This practice has increased in recent decades, but its net effect on fetal and infant survival has not been assessed...
  42. ncbi request reprint [Why do some women only give birth to boys or to girls?]
    Tonje Lippert
    Det medisinske fakultet, Norges Teknisk Naturvitenskapelige Universitet, 7489 Trondheim
    Tidsskr Nor Laegeforen 125:3414-7. 2005
    ..There are more families with many children of only one sex than can be explained by unconditional probability...
  43. doi request reprint Preeclampsia and the risk of end-stage renal disease
    Bjørn Egil Vikse
    Renal Research Group, Institute of Medicine, Haukeland University Hospital, Bergen 5021, Norway
    N Engl J Med 359:800-9. 2008
    ..It is unknown whether preeclampsia is a risk marker for subsequent end-stage renal disease (ESRD)...
  44. ncbi request reprint Recurrence risk in hyperemesis gravidarum
    Lill I S Trogstad
    Department of Obstetrics and Gynecology, Ulleval University Hospital, Oslo, Norway
    BJOG 112:1641-5. 2005
    ..To compare the risk of hyperemesis gravidarum in second pregnancies in women with and without hyperemesis in their first pregnancy, and to determine if this risk changes with changes in paternity or with the interval between deliveries...
  45. pmc Familial risk of oral clefts by morphological type and severity: population based cohort study of first degree relatives
    Ase Sivertsen
    Department of Plastic Surgery, Haukeland University Hospital, NO 5021 Bergen, Norway
    BMJ 336:432-4. 2008
    ..To estimate the relative risk of recurrence of oral cleft in first degree relatives in relation to cleft morphology...
  46. pmc Effects on pregnancy outcome of changing partner between first two births: prospective population study
    Lars J Vatten
    Department of Public Health and General Practice, Norwegian University of Science and Technology, NO 7489 Trondheim, Norway
    BMJ 327:1138. 2003
    ..To compare the effects on pregnancy outcomes of changing partner between the first two births with having the same partner for both births...
  47. ncbi request reprint Low birthweight and mortality: the tendency to repeat low birthweight and its association with early neonatal and infant morbidity and mortality
    Leiv S Bakketeig
    National Institute of Public Health Oslo, Norway
    Paediatr Perinat Epidemiol 20:507-11. 2006
    ..Except for differences in Apgar scores, we observed no differences in morbidity based on registered hospitalisations during infancy...
  48. doi request reprint Association of preterm birth with long-term survival, reproduction, and next-generation preterm birth
    Geeta K Swamy
    Department of Obstetrics and Gynecology, Duke University Medical Center, Durham, North Carolina 27710, USA
    JAMA 299:1429-36. 2008
    ..Preterm birth is a major cause of infant morbidity and mortality. Less is known about long-term health among persons born preterm...
  49. ncbi request reprint Offspring sex and pregnancy outcome by length of gestation
    Lars J Vatten
    Department of Public Health and General Practice, Norwegian University of Science and Technology, NO 7489 Trondheim, Norway
    Early Hum Dev 76:47-54. 2004
    ..The unbalanced pregnancy survival by offspring sex may also be reflected in higher proportion of preterm male births, and in unbalanced sex distribution in certain pregnancy conditions, such as preeclampsia...
  50. ncbi request reprint Men's body mass index and infertility
    Ruby H N Nguyen
    National Institute of Environmental Health Sciences NIEHS, National Institutes of Health NIH, DHHS, Research Triangle Park, NC, USA
    Hum Reprod 22:2488-93. 2007
    ..We investigated whether higher BMI among men is associated with infertility and if so, to what extent that effect might be mediated by altered sexual function...
  51. ncbi request reprint Is pre-eclampsia more than one disease?
    Lars J Vatten
    Department of Community Medicine and General Practice, Norwegian University of Science and Technology, Trondheim, Norway
    BJOG 111:298-302. 2004
    ....
  52. ncbi request reprint The heavier the better? Birthweight and perinatal mortality in different ethnic groups
    Siri Vangen
    Department of Obstetrics and Gynaecology, The National Hospital, N 0027 Oslo, Norway
    Int J Epidemiol 31:654-60. 2002
    ..Given the close relation between birthweight and perinatal mortality, we explored whether ethnic differences in birthweight explain ethnic differences in perinatal mortality...
  53. pmc Reference population for international comparisons and time trend surveillance of preterm delivery proportions in three countries
    Nils Halvdan Morken
    Department of Obstetrics and Gynecology, Telemark Hospital, Skien, Norway
    BMC Womens Health 8:16. 2008
    ..International comparison and time trend surveillance of preterm delivery rates is complex. New techniques that could facilitate interpretation of such rates are needed...